A 20 kN weight is suspended by two wires as shown in the figure. The length of each wire is 2 meters. The steel wire (E value 200 GPa) has a cross-sectional area of 60 × 10-6 m2 and the aluminum wire (E value 70 GPa) has a cross-sectional area of 120 × 10-6 m2. The stress in aluminium wire is

• A. \(\frac{17}{102}~GPa\)
• B. \(\frac{7}{120}~GPa\)
• C. \(\frac{17}{120}~GPa\)
• D. \(\frac{7}{102}~GPa\)